New version Memcache

Last Updated: Mar 14, 2018

Background

ApsaraDB for Memcache (original version) uses distributed cache architecture. It guarantees service reliability but does not guarantee data reliability. When a service node fails you must push the Memcache system in the event of data loss. Because, Memcache does not provide a data persistence policy, which can cause major problems.

To serve our customers better, the Alibaba Cloud ApsaraDB team upgraded ApsaraDB for Memcache (on May 10, 2017) with advanced features including dual-node hot standby, data persistence, and backup recovery. The new Memcache offers you with complete database solutions covering disaster tolerance, recovery, monitoring, migration, and so on, without affecting service reliability.

Product forms comparison

Module

New Version Memcache

Earlier Version Memcache

Distributed architecture

Supported

Supported

Data persistence guarantee

Supported

Not supported

Dual-node hot standby architecture

Supported

Not supported

Memcache protocol compatibility

Fully compatible

Fully compatible

Sales model comparison

The new version has more flexible sales models, and supports both Subscription and Pay-As-You-Go.

Module

Later Version Memcache

Earlier Version Memcache

Subscription new purchase

Supported

Not supported

Subscription upgrade

Supported

Not supported

Subscription renewal

Supported

Not supported

Subscription renewal and configuration change

Supported

Not supported

Subscription automatic renewal

Supported

Not supported

Pay-As-You-Go new purchase

Supported

Supported

Pay-As-You-Go configuration change

Supported

Supported

Release of Pay-As-You-Go instances

Supported

Supported

Changing Pay-As-You-Go to Subscription

Supported

Not supported

Supported regions

New Memcache supports a wider range of regions, including major international regions and all regions in China.

International regions list

Region

Zone

New Version Memcache

Old Version Memcache

Asia Pacific (Singapore)

Asia Pacific 1 Zone A

Supported

Not supported

Japan

Japan Zone A

Supported

Not supported

Germany (Frankfurt)

Germany Zone A

Supported

Not supported

Southeast Asia Pacific 2 (Sydney)

Australia Zone A

Supported

Not supported

Hong Kong

Hong Kong Zone C

Supported

Not supported

US East

US East 1 Zone A

Supported

Not supported

US (Silicon Valley)

US West 1 Zone B

Supported

Supported

Regions in China

Region

Zone

New Version Memcache

Old Version Memcache

East China 1

East China 1 Zone B

Supported

Supported

East China 1 Zone D

Supported

Supported

East China 1 Zone E

Supported

Supported

East China 2

East China 2 Zone A

Supported

Supported

East China 2 Zone B

Supported

Supported

South China 1

South China 1 Zone A

Supported

Supported

South China 1 Zone B

Supported

Supported

North China 1

North China 1 Zone B

Supported

Supported

North China 2

North China 2 Zone A

Supported

Supported

North China 2 Zone B

Supported

Supported

North China 2 Zone C

Supported

Supported

Functional modules comparison

New Memcache supports more functions, most of which are advanced database functions.

Categories

Functions

New Version Memcache

Old Version Memcache

Backup recovery

Full backup

Supported

Not supported

Backup recovery

Supported

Not supported

Clone instance

Supported

Not supported

Data flow operation

Supported

Simple command lines

Monitoring alarms

Resource monitoring

Supported

Supported

Resource alarms

Supported

Supported

Data security

Whitelist

Supported

Not supported

VPC

Supported

Supported

Whitelist password-free access

Supported

Supported

Password-free for multiple Memcache instances

Supported

Not supported

Related FAQs

How can I manage and change the configuration of the earlier version ApsaraDB for Memcache?

A: You can continue managing earlier version ApsaraDB for Memcache instances in Alibaba Cloud console. Activated earlier version instances can be managed, changed in configuration, and released normally.

How can I purchase another earlier version ApsaraDB for Memcache instance?

A: The earlier version ApsaraDB for Memcache no longer supports purchasing new instances. You may only purchase a later version ApsaraDB for Memcache product.

Alibaba Cloud launched single-node ApsaraDB for Memcache in August 2017. The single-node product has the same price as the earlier version ApsaraDB for Memcache does. You can flexibly choose single-node or dual-node product formats to meet diverse business needs.

How can I upgrade an earlier version ApsaraDB for Memcache instance to the new version?

A: Currently ApsaraDB for Memcache does not support one-click upgrade from the earlier version to the new version.

To upgrade Memcache to the new version, you must purchase a new version instance, push data manually, direct your apps to the domain name of the new instance, and then release the earlier version instance.